Oil-pump.



F. R. PORTER.

OIL PUMP.

APPLICATION FILED NOV. 14, I916.

Patented Sept. 4, 1917.

2 SHEETS-SHEET 1.

F. R. PORTER.

, OIL PUMP.

APPLICATION FILED NOV-14, 1916- 11 ,%3&@1l & Patented Sept. 4, 191?.

2 SHEETSSHEET 2.

FINLEY B. PORTER, OF PORT JEFFERSON, NEW YORK, ASSIGNOR TO FINLEY ROBERT- SON PORTER COMPANY, ING., 0F PORT JEFFERSON, NEW YORK, A CORPORATION OF DELAW i Application filed November To all whom it may concern.

Beit known that I, FINLEY R. PORTER, a citizen of the United States, and resident of Port Jelferson, in the county of Suffolk and State of New York, have invented a new and useful Improvement in Oil-Pumps, of which the following is a specification.

In actual practice, it has been very dificult, if not impossible, to successfully produce a circulating oil pump for internal combustion engines which will work etfi lated at all ciently at both low and high engine speeds. When the pump has been designed especiallyv for pumping oil at low engine speeds, is has been ineflicient or inoperative to pump the oil at high engine speeds and vice Versa.

The object of my invention is to produce an oil pump which will be efficient at all speeds, and in which the amount of oil pumped may be accurately and easily regutimes without changing any of the parts of the pump mechanism.

The pump comprises reciprocating and rotary elements, the reciprocating element or elements serving to positively and efiiciently pump the oil at low speeds and the rotary element serving to pump the oil by centrifugal action at high speeds.

My invention more particularly includes a casing having an axial inlet and peripheral outlet or outlets, in which casing a barrel is mounted to rotate aiound the axial inlet, said barrel having one or more chambers therein arranged parallel to the axis of rotation of the barrel, said chamber or chambers having inlet and outlet ports arranged to be brought into and out of communica tion with the casing inlet and outlet or outlets as the barrel is rotated; a plung'er being located in each chamber and reciprocated as the barrel is rotated, by a pair of upper and lower stationary cams having inclined parallel inner faces along which the opposite ends of the plunger travel; means be ing employed to adjust the cams to change the stroke of the plunger for regulating the amount of oil pumped.

A practical embodiment of my invention is represented in the accompanying drawings, in which- Figure 1 is a top plan view of the pump,

Fig. 2 is a side view,

Fig. 3 is a bottom plan view,

Fig. 4 is a side view taken in a plane at right angles to Fig. 2, l

Specification of Letters Patent.

OIL-PUMP.

Patented 14, 1916. Serial no. 131,255.

Sept. 4, 1917.

Fig. 5 is a section taken in the line VV of Fig. 2

Fig. 6 is a section taken in the plane of the line VI-VI of Fig. 4.,

Fig. 7 is a'section taken in the plane of the line VII-VII of Fug. 2, and

Fig. 8 is a section taken in the the line VIIIVIII of Fig.2.

he Oll pump casing comprises the main portion 1 and the side extension 2. The main portion of the casing has an intermediate smaller cylindrical bore 3 and upper and lower larger cylindrical bores 4: and 5. The casing has also one or more transversely arranged discharge ports extending part Way around the intermediate bore 3. In the present instance, where the pump is designed for discharging the oil through four pipes 6. 7, 8, 9, four of these transversely arranged ports 10, 11, 12, 13, are provided in four different horizontal planes, which ports communicate with their respective discharge pipes 6, 7, 8, 9.

A barrel 14, mediatebore 3 of the casing, which barrel is provided with an uprising shaft 15 by means of which the barrel may be rotated from any desired source of power, as, for instance, from the engine, not shown, in connection with which the pump is to be used. This rotary barrel is supported in its position Within the reduced intermediate bore 3 of the casing by providing the shaft 15 with a nut 16 which bears upon the cover 17 of the casing through which the shaft 15 projects.

The shaft 15 is provided also with a hearing in the cap 18 of the cover 17.

The rotary barrel 14: has a central bore 19 opening through its bottom, into which bore is introduced an open-ended tube 20 projecting upwardly from a plate 21 which closes the bottom of the enlarged lower bore 5 of the casing.

Upper and lower cam rings 22, 23, are lo: cated in the upper and lower enlarged bores 4 and 5 of the casing and surround the shaft 15- and tube 20, respectively. These cam rings 22, 23, have parallel inclined inner faces for engaging the upper and lower ends, respectively, of an annular series of oil pump plungers 24, 25, 26, 27, and reciprocating them vertically in their oil chambers 28, 29, 30, 31,. respectively. in the barrel 14.

Each of these reciprocating plungers comthe plane of plane of rotates in the reduced interprises a head and a stem, the head projecting downwardly through the bottom of the barrel into engagement with the inclined inner face of the lower cam ring 23, and the stem projecting upwardly through the top of the barrel into engagement with the inclined inner face of the upper cam ring 22.

. Ihe upper cam ring 22 has a limited rockmovement on trunnions 32, 33, introduced through the sides of the casing at the enlarged upper bore 4. Similarly, the'lower cam ring 23 has a limited rocking movement on trunnions 34, 35, introduced through the sides of the casing at the enlarged upper bore 5.

The oil screen 36 is interposed between the plate 21 and a locking ring 37, which locking ring is screwed into the bottom of the casing and serves also to positionithe plate 21 of the tube 20. The tube is provided with an elongated port 38 through its side wall within the rotary barrel 14. The

plunger chambers 28,29, 30 and 31 are pro vided with oil inlet ports 39, 40, 41,12, lead- 35 successively brought into communication ing to the central bore 19 of the rotary barrel and with outlet ports 43, 44, 45, 46, leading to the periphery of the barrel. The port 38' in the tube 20 is sufiiciently long to open communication successively from the inte rior of the tube to the interiors ofthe plunger chambers through their respective inlet ports. The outlet ports43, 44, 45, 46, for these chambers are arranged respectively in the horizontal planes of the discharge ports 10, 11, 12, 13, in the casingand are with said ports as the barrel is rotated. It will thusbe seen that as the barrel is rotated, the tube 20 and the casing serve to successively open and close communication through the plunger chambers from the interior -of vided with upper and lower worms 48 and ,49 at all times in engagement with rack gear teeth cut in the peripheries of the upper and "lower cam rings 22, 23. The upper end of this shaft 47 projects throu h the cover 17 to a point where a ke or ot er tool may be applied for rotating t e shaft tothe desired extent. It will be understood that as the worm shaft is turned in one direction to rock theupper and lower crank cam rings'to increasetheir inclination, the stroke of the plungers in their chambers in the barrel will be increased and consequently a greater amount of oil will be thereby and it' will be un erstood that as the worm shaft is turned in the. other direction to decrease the inclination of the cam faces, the stroke of. the plungers will be conseositively pumped quently decreased and the amount of oil pumped positively by'the reciprocation of the plungers will be reduced.

It is evident that the means which I. have disclosed for varying the stroke of the plun gers is only one of many different embodiments which might be employed for this purpose.

In operation, when the pump is being driven at low speeds, as, for instance, at a low engine speed, the oil will be drawn into and forced from the'pump positively by the plungers. speeds as, for instance, at a high engine speed, the rotary movement of the barrel, together with the relative locations of the inlet and outlet ports, respectively nearer to and farther away from the axis of rotation of the barrel will cause the oil to be drawn into and forced from the pump by centrifu gal action thus insuring an amplesupply of oil at high speeds as well as at low speeds by this combined centrifugal and positive action of the pump.

While I have shown the pump as adapted When the pump is driven at high for the discharge of four streams of oil, it

is obvious that it may be adapted for the discharge of one or more streams of oil, as desired.

It is evident that changes-may be resorted to in the form, construction and arrangement of the several parts without departing from the spirit and scope of my invention; hence I do not wish to limit myself strictly to the structure herein set forth, but

What I claim is:- p

1. In an oil pump, meansto pump the oil positively at low speeds and by centrifugal action at high speeds, and adjusting means for regulating the amount of oil pumped.

2. In an oil pump, means to pump the oil positively at low speeds, means to pump the oil by centrifugal action at high speeds, and

adjusting means for regulating the amount of oilpumped.

3. In an oil pump, reciprocating means to pump the oil positively at low speeds,

means to pump the oil by centrifugal action at high speeds, and adjusting means for regulating thaamount of oil pumped.

positively at low speeds, rotary means to pump the oil by centrifugal action at high speeds, and adjusting means for regulating t e amount of oil pumped.

5. In an oil pump, reciprocating means to pump the-oil positively at low speeds, rotary means to pump the oil by centrifugal action at high speeds, and adjusting means for changing the stroke of the reciprocating i20. 4. 'In an oil pump,means to pump the oil Y means to regulate the amount of oil pumped thereby.

6. In an oil pump,

coacting reciprocating and rotary elements operating to pump the 011 positively at low speeds and by centrifugal action at high speeds, and adjusting means for changing the stroke of the reciprocating element to regulate .the amount of oil pumped thereby.

In an oil pump, a reciprocating plunger, a rotary barrel in which the plunger reciprocates, coacting to pump the oil positively at low speeds, and by centrifugal action at high speeds, and adjusting means for changing the stroke of the reciprocating plunger to regulate the amount of oil pumped thereby.

8. In an oil pump, a plurality of reciprocating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at 'low speeds andby centrifugal action at high speeds, and adjusting means for changing the stroke of the reciprocating plungers to regulate the amount of oil pumped thereby.

9. In an oil pump, a rotary barrel having an oil chamber withinlet and outlet ports arranged respectively nearer to and farther away from the axis of rotation, a plunger reciprocating in said chamber,

011 is pumped positively at low speeds by the reciprocation of the plunger and is pumped by centrifugal action at high speeds by the rotary movement of the barrel, and adjusting means for changing the stroke of the reciprocating plunger to regulate the amount of oil pumped thereby.

10. In an oil pump, a rotarybarrel having a plurality of oil chambers with inlet and outlet ports arranged respectively nearer to and farther away rotation, plungers reciprocating in said chambers, whereby the oil is pumped to different points positively at low speeds by the reciprocation of the plungers and is pumped by centrifugal action at high speeds by the rotary movement of the barrel and adjusting means for changing the stroke of the reciprocating plungers to regulate the amount of oil pumped thereby.

11. In an oil pump, a. casing having an axial inlet and peripheral outlet, a barrel rotating in said casing having a chamber w1th inlet and outlet ports arranged to be brought into and out of communication with" the casing inlet and outlet by the rotary movement of the barrel, a plunger reciproeating in said chamber whereby the oil is pumped positively at low speeds and by centrifugal action at high speeds, and ad usting means for changing the stroke of the reciprocating plunger to regulate the amount of oil pumped thereby.

12. In an oil pump, a casing having an axial inlet and peripheral outlets, a barrel rotating regulate the amount of whereby the,

upper and lower from the axis of with inlet andoutlet ports arranged to be brought into and out of communication with the casing inlet and outlets by the rotary movement of the barrel, plungers reciprocating in. said chambers whereby the oil is pumped to different points positively at low speeds and by centrifugal action at high speeds, and adjusting means for changing the stroke of the reciprocating plungers to oil pumped thereby.

13. In an oil pump, a reciprocating plunger and a rotary barrel in which the plunger reciprocates, coacting to pump the oil positively at low speeds, and by centrifugal action at high speeds and upper and lower adjustable cam rings having parallel inner faces engaging the upper and lower ends of the plunger to reciprocate it and to regulate the amount of oil pumped thereby.

14. In an oil pump, a plurality of reciprocating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at low speeds and by centrifugal action at high speeds, upper and lower adjustable cam rings having parallel inner faces engaging the upper and lower ends of the plungers to reciprocate them and to regulate the amount of oil pumped thereby.

15. In an oil pump, a plurality of recipros cating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different oints positively at low speeds and by centri gal action at high speeds, cam rings having parallel inner faces engaging the upper and lower ends of the plunger to reciprocate it, and adjusting meansfor rockin the cam rings to change the stroke of the p unger for regulating the amount of oil pumped thereby.

16. In an oil pump, a plurality of reciprocating plungers, a rotary barrel in which the plungers reciprocate, coacting to pump the oil to different points positively at low speeds and by centrifugal action at high speeds, upper and lower cam rings having parallel inner faces engaging 'the upper and lower ends of the plungers to reciprocate them, and adjusting means for rocking the cam rings to change the stroke of the plungers for regulating the amount of oil pumped thereby.

17. In an oil pump, a rotary barrel having an oil chamber with inlet and outlet ports arranged respectively nearer to and farther away from the axis of rotation and a plunger reciprocating in said chamber, oil is pumped positively at low speeds by the reciprocation of the plunger and is pumped by centrifugal action at high speeds by the rotary movement of the barrel, upper and lower cam rings having parallel inner faces engaging the upper and lower ends of the plungerto reciprocate it and ad]ustmg means for rocking the cam rings to change the in said casing having chambers whereby the outlet ports arranged respectively nearer to I and farther away from the axis of rotation and plungers reciprocating in said chambers, whereby the oil is pumped to different points positively at low speeds by the reciprocation of the plungers, and is pumped by centrifugal action at high speeds by the rotary movement of the barrel, upper and lower cam rings having parallel inner faces engaging the upper and lower ends of, the plungers toreciprocate them and adjusting means for rocking the cam rings to change the stroke of the plungers for regulating the amount of 1 oil pumped thereby.

19. In an oil pump, a rotary barrel having an oil chamber with inlet and outlet ports arranged respectively nearer to and farther away from the axis of rotation and a plunger reciprocating in said chamber, whereby the oil is pumped positively at low speeds by the reciprocation of the plunger and is pumped by centrifugal action at high speeds by the rotary movement of the barrel, upper and lower cam rings having parallel inner faces engaging the upper and lower ends of the plunger to reciprocate it and adjusting means for rocking the cam rings to change outlet ports arranged respectively nearer to and farther away from the axis of rotation and plungers reciprocating in said chambers, whereby the oil is pumped to different points positively at low speeds by the reciprocation of the plungers, and is pumped by centrifugal action at high speeds by the rotary movement of the barrel, upper and lower cam rings having parallel inner faces engaging the upper and lower ends of the plungers to reciprocate them and adjusting means for v rocking the cam rings to change the stroke of the plungers for regulating the amount of oil pumped thereby, said means comprising a shaft rotatably mounted in the casing and having a geared connection with said cam rings.

In testlmony, that'I claim the foregoing as I my invention, I have s1 ed my name this twenty-fourth day of October, 1916,

F INL R. PORTER. 

